EP 0523647 A1 19930120 - Multiple pass laser printing for improved uniformity of a transferred image.
Title (en)
Multiple pass laser printing for improved uniformity of a transferred image.
Title (de)
Mehrfach-Durchlauf-Laserdruck zur Erzielung einer verbesserten Gleichförmigkeit eines übertragenen Bildes.
Title (fr)
Impression par laser à passes multiples pour améliorer l'uniformité d'une image produite par transfert.
Publication
Application
Priority
US 73073991 A 19910716
Abstract (en)
This invention relates to a process of forming a laser-induced thermal dye transfer image comprising: a) contacting at least one dye-donor element comprising a support having thereon a dye layer, having an infrared-absorbing material associated therewith, with a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, said dye-donor and dye-receiver being separated by spacer beads; b) imagewise-heating the dye-donor element by means of a laser at a given power supplied to the laser; and c) transferring a dye image to the dye-receiving element to form the laser-induced thermal dye transfer image, and wherein another portion of the dye-donor element or another dye-donor element is imagewise-heated by the laser to transfer a second dye image which is approximately the same hue as the first dye image and is in register with the first dye image to produce a given density, the power supplied to the laser for the first and second imagewise heatings being lower than the power which would have to be supplied to the laser to produce the same given density with only one imagewise heating.
IPC 1-7
IPC 8 full level
B41M 5/26 (2006.01); B41M 5/382 (2006.01); B41M 5/46 (2006.01); B41M 5/50 (2006.01); B41M 5/52 (2006.01); B41M 5/34 (2006.01); B41M 5/40 (2006.01); B41M 5/41 (2006.01)
CPC (source: EP US)
B41M 5/38264 (2013.01 - EP US); B41M 5/46 (2013.01 - EP US); B41M 5/345 (2013.01 - EP US); B41M 5/41 (2013.01 - EP US); B41M 5/465 (2013.01 - EP US); Y10S 428/913 (2013.01 - EP US); Y10S 428/914 (2013.01 - EP US); Y10S 430/146 (2013.01 - EP US)
Citation (search report)
- [XD] EP 0318946 A2 19890607 - EASTMAN KODAK CO [US]
- [A] FR 2177302 A5 19731102 - NORIDEM ETUDES PROCEDE [CH]
- [A] EP 0181981 B1 19900404
- [XP] EP 0468105 A1 19920129 - AGFA GEVAERT NV [BE]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0523647 A1 19930120; JP H05185728 A 19930727; JP H07102742 B2 19951108; US 5183798 A 19930202
DOCDB simple family (application)
EP 92112057 A 19920715; JP 18830992 A 19920715; US 73073991 A 19910716